.\" Copyright (c) 1990, 1991, 1993 .\" The Regents of the University of California. All rights reserved. .\" .\" This code is derived from software contributed to Berkeley by .\" Chris Torek. .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" from: @(#)bcmp.3 8.1 (Berkeley) 6/4/93 .\" $NetBSD: bcmp.3,v 1.14 2012/05/05 21:24:19 dholland Exp $ .\" .Dd May 5, 2012 .Dt BCMP 3 .Os .Sh NAME .Nm bcmp .Nd compare byte string .Sh LIBRARY .Lb libc .Sh SYNOPSIS .In strings.h .Ft int .Fn bcmp "const void *b1" "const void *b2" "size_t len" .Sh DESCRIPTION The .Fn bcmp function compares byte string .Fa b1 against byte string .Fa b2 , returning zero if they are identical, non-zero otherwise. Both strings are assumed to be .Fa len bytes long. Zero-length strings are always identical. .Pp The strings may overlap. .Pp This function is obsolete. The equivalent function .Xr memcmp 3 should be used instead. .Sh SEE ALSO .Xr memcmp 3 , .Xr strcasecmp 3 , .Xr strcmp 3 , .Xr strcoll 3 , .Xr strxfrm 3 .Sh STANDARDS The .Fn bcmp function conforms to .St -p1003.1-2001 . The .St -p1003.1-2004 revision marked it as legacy and recommended the use of .Xr memcmp 3 instead. The .St -p1003.1-2008 revision removed .Fn bcmp from the specification. .Sh HISTORY A .Fn bcmp function first appeared in .Bx 4.2 . td>Retire varargs.h support. Move machine/stdarg.h logic into MIjoerg 2010-03-271. {wctype,wctrans,mbstate}_t: switch MD to MI like othertnozaki 2009-01-11merge christos-time_tchristos 2008-10-26put the contents of these header files around #ifdef __x86_64__, andmrg 2007-10-17Merge the ppcoea-renovation branch to HEAD.garbled 2007-09-03clean up some definitions around rune_t which are not needed anymoredrochner 2006-10-04fix gcc -Werror -Wmissing-braces problemtnozaki